Block Diagram Descriptions
Theory of Operation
3Ć20
'$   !- /# "-,0(010 -% 1'$%-**-4(,& "(/"2(10
 
 3$%-/+
(0.* 6(,1$/% "$
(+$ 0$-,1/-**$/ (,1$/% "$
5$"21(3$./-"$00-/ (,1$/% "$
(0.* 6 
("/-./-"$00-/
(1 + . 
 3$%-/+#(0.* 6 "(/"2(1/6
(#$- 
'$   !- /# "--/#(, 1$0 "-++2,(" 1(-,0 +-,&1'$ %-**-4(,&
1'/$$   02!0601$+0
(0.* 6
(+$ 0$-,1/-**$/
5$"21(3$
$$ (&2/$ 7 %-/ !*-") #( &/ +-% 1'(0 !- /#

MMU IC

'(0 "(/"2(1 "-,1/-*0 ** # 1 1/ ,0%$/0 1- ,# %/-+ 4 3$%-/+ '$ 
& 1$ // 6 "-,1/-*0 '(&'70.$$# 1/ ,0%$/0 -% 4 3$%-/+# 1 ,# "-++2,(" 7
1(-, +$00 &$0 !$14$$, 4 3$%-/+  ,# 1'$ 1'/$$ 02!0601$+ (,1$/% "$0
1'$ (0.* 6(+$  0$-,1/-**$/ ,# 5$"21(3$./-"$00-/0 0$1 -%' ,#7
0' )(,& *(,$0 #$0(&,$# 1- 1'$  % "(*(1($0-% $ "' . /1("2* / 02!0601$+
"--/#(, 1$0$ "' 02!0601$+(,1$/% "$

Waveform RAM

'(0 "(/"2(1 "-,0(010 -%  !61$0-%  '$ '-*#0 4 3$%-/+ # 1
,# +$00 &$0 1' 1 /$ /$ # ,# 4/(11$, !61'$ (+$  0$-,1/-**$/(07
.* 6 ,# 5$"21(3$02!0601$+0

Display Interface

 1 (0 1/ ,0%$//$# 1- ,# %/-+1'$ (0.* 6 02!0601$+ ,# 1- ,# %/-+1'$
  1'/-2&' 1'(0 (,1$/% "$ '$ # 1 (0 !2%%$/$# 4(1' 1'$!(#(/$"1(-, *
#(0.* 6 # 1 !2%%$/0
A15 MemoryManagement Unit(MMU) Board